Florence Pugh stunned in a sparkly, sheer gown that had a dramatic train at the 'Don't Worry Darling' premiere

• Florence Pugh attended the premiere of "Don't Worry Darling" at the Venice Film Festival.
• Her Maison Valentino dress was completely covered in sparkles and had a daring, sheer skirt.

Florence Pugh literally sparkled at the premiere of "Don't Worry Darling" at the Venice Film Festival.

Pugh, 26, stars in Olivia Wilde's thriller alongside Harry Styles.

The actress took a break from filming the sequel to "Dune" to attend the film's festival premiere, though she missed a panel with her co-stars earlier in the day, according to People.

She arrived at the red carpet in a stunning, black Maison Valentino garment.

The dress was entirely covered in sparkly embellishments and looked like a cross between a bodysuit and a ball gown.

The ensemble had an off-the-shoulder neckline, which was accented by puffy sleeves and a sweetheart neckline.

Pugh's corset bodice was sheer on top, while the bottom half was slightly less transparent, covering Pugh through her upper-thigh.

A sheer skirt cinched out from the ensemble at the waist, and it flowed into a dramatic train that showed off Pugh's legs.

Pugh completed the glitzy ensemble with a diamond choker, earrings, and rings from Tiffany & Co. and black pumps that encircled her ankles with feather detailing.

Peter Lux swept Pugh's hair into an Old Hollywood-style side-swept look, and Alex Babsky did her makeup.

Pugh's appearance at the festival comes amid rumors of a rift between her and Wilde. Wilde, 38, avoided a question about their relationship at a panel on Monday.

"As for all the endless tabloid gossip and all the noise out there, I mean, the internet feeds itself," she said when asked about a "falling out" with Pugh, according to People. "I don't feel the need to contribute. It's sufficiently well nourished."